Fur-cutting machine.



E. BIRO.

FUR CUTTING MACHINE.

APPUCATION FILED AUG-21, 19w.

mgwmmm Patented Apr. 23,1918.

lA/VE/V TOR nnn'ns'r mac, on NEW xonx, n.

Y., ASSIGNOR. or ONE-HALF '10 WILLIAM JBLAU, on NEW YORK, iv. v.

run-comma MACHIN Specification of Letters Patent.

Application filed August 21, 1917. SerialNo. 187,457.

To all whom it may concern:

Be it known that I, ERNEST Brno, a subject of the King of Hungary, and a resident of the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Fur-Cutting Machines, of which the following is a specification.

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The present invention relates to fur cutting machines, and moreparticularly to a machine for serrating or zigzagging the edges of fur pieces.

' One of the objects of the invention is to provide a machine of the character mentioned, which indentsor snips the skin without in uring or severing the fur fibers covering the same. v

Another object of the invention is to provide an implement of the character mentioned which is simple in construction, eficient in operation and which can be operated by a workman of ordinary skill. With these and other objects in view which will more fully appear as'the nature of the invention is better understood, the same consists in the combination, arrangement, and construction of parts hereinafter described, pointed out in the appended claims and illustrated in the accompanying drawings, it being understood that many changes maybe made in the size and proporj tion of the several parts and details of construction within the scope of the appended claims without departing from the spirit or sacrificing any of the advantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which Figure 1 is a vertical longitudinal section taken through a machine constructed in accordance with the invention; Fig. 2 is a top plan view thereof; Fig. 3 is a front elevation of one of the cutters or knives of the anachine, showing the cutter bar, to whlch 1t 1s attached, in section; Fig. 4: is a front elevation of the detail shown in Fig. 3; and Fig. 5 is a plan view of the work, illustrating the form of serrationsor zigzags cut into the edge thereof.

In the drawings, the numeral 10 indlcates the base of the machine, constituting a Work table, that is preferably made of wood,

- lar means.

although other suitable materials may be employed. To this base is attached in any suitable manner a frame standards 12, that are connected at their upper ends and also a substantial distance below said upper ends by horizontally extending transverse members 13, which are shown in the drawings as made integral with the said standards, although, obviously, they may be secured thereto in any preferred way. The standards 12 are attached to the ends of'the baseplate' 10 by screw bolts or other suitable means. Each of the transverse members 13 is provided with a .row of equidistantly disposed apertures 14, the apertures of one member being in alinement with those of the other member. Through each pair of registering apertures in the two transverse members extends a cylindrical cutter bar 15. These bars are attached at their upper ends to a transversely extending cutter head 16. This head is made, preferably, in the form of a bar, and the connection between the latter and the said cutter bars being such that the said cutter bars are adapted to oscillate on the said head, or in other words thesaid cutter bars are pivoted to the said cutter head. To'the lowerend of each cutter bar is secured a knife 17. These knives are made in the form of blades, thecutting edges 18 of which are disposed at acute angles to the longitudinal axis of their respective cutter bars. For the purpose of connecting properly a lmife with its cutter bar, there is formed in the latter a slot 19 in which the said knife is seated, the connection being made by rivets 20 :or simi- The slots of the cutter bars are disposed substantially in the longitudinal axes of thesaid bars, and the piercing point 21 of each blade is also located in the longitudinal axis of its respective cutter bar. The purpose of this arrangement is to eliminate ateral bendlng stresses during the cutting Patented A as, rare.

11, including two.

operation. The knives extend forwardly of i verse member 13, thereby forming stops,

limiting the upward movement of the cutter bars and knives attached thereto. The rear ends of the arms 22 are pivoted to a transverse bar 23, upon one of the ends of which is formed a suitably shaped handle 24. This last named bar is provided with two notches, denoted by the numerals 25 and 26, which are adapted to cooperate with a suitably shaped stop 27 upon one of the standards 12,

for a purpose presently to be described. By.

shifting the bar 23 in one or the other direction, all of the cutter bars and knives are caused to move in the opposite direction, maintaining their parallel relations. When the stop 27 is seated in the notch 26, the elements are in the positions shown in full lines in Fig. 2 of the drawings, and, when the bar 23 is shifted and the stop 27 seated in the notch 25, the said elements are in the positions shown in dotted lines in Fig. 2 of the drawings. Upon each cutter bar is wound a spring coil 28, said coils bearing with one i work table 10, the rear edge 33 of which is of zigzag shape. This zigzag edge is located in rear of the knives in both of their extreme positions and clears the same in such positions. Within each two adjoining bends of the zigzagedge 33 is disposed a substantially triangular tongue 34, that is spaced from said edge sufficiently to permlt a knife.

in both ofits extreme positions to pass between the edge 33 and the said tongue. These tongues are preferably made integral with forwardly extending strips 35', that are attached to the base plate, the tongues proper being supported by brackets 36.

Upon the tongues are mounted upwardly extending pins 37, their upper ends being flush with the upper surface of the base plate.

To the front edge of thebase plate 10 is pivoted at 38 a presser plate 39, that extends, in its operative position, parallel to the base plate, and is provided with a handle 40 for actuating the same. This plate is provided with substantially triangular presser feet 41, that register with the tongues 34 above mentioned.

The operation of this device is as follows: In order to place the work, that is to say the fur, upon the work table, the presser plate is raised to the position shown in dotted lines in Fig. 1 of the drawings, after which the fur is placed, with the fur fibers face down, onto the work table. Care is taken that the edge to be zigzagged or serrated does not extend at a greater distance in front of the pins 37 than is necessary, in order to prevent waste of material. The presser plate is then returned to its normal position, thereby holding the work in proper, position upon the table. Attention is called to the fact that the edge of the work, to be zigzagged or serrated, is supported by the pins 37 only. The fur fibers are thus permitted to extend vertically downward, and due to this fact the knives, in performing their operations, cut the skin of the fur only but'leave the fur fibers intact. After the presser plate has been brought into its operative position, the knives are shifted into one of the extreme positions and the corresponding notch in the bar 23 engaged with the stop 27. The knives are then brought down by forcing the yoke-shaped lever 31 in the direction of the arrow shown in Fig. 1 of the drawings downward, whereby the knife blades snip through the fur, making parallel snips of equal length in the edge portion of the fur. The operator shifts then, by the aid of the rod. 23, the knives to their other extreme positions, fixes the said rod, and repeats the operation above described. In this manner the edge of the fur is zigzagged' or serrated.

It is to be observed that, in forcing the knives toward the table or base 10, the springs 28 are compressed, so that, as soon as the operator lets go of the lever 31, the knives are returned to their upper positions.

What I claim is 1. A machine for zigzagging the edge of fur, including a table for supporting the body of the work and pins on which the edge to be zigzagged is adapted to rest, the upper ends of said pins being flush with the upper surface of said table, and a presser plate cooperating with said table and pins.

2. A machine for zigzagging the edge of fur, including a table for supporting the body of the work and pins on which the edge to be zigzagged is adapted to rest, the upper ends of said pins being flush with the upper surface of said table, and a presser plate hinged to said table and cooperating with said table and pins. I

3. A machine for zigzagging the edge of fur, including a table for supporting the body of the work, said table having a zigzagged edge, pins mounted within the turns of said edge adapted to support the portion of the fur to be zigzagged, and a presser plate cooperating with said table and pins.

4. A machine for zigzaggingthe edge of fur, including a table for supporting thebody of the work, said table having a zigzagged edge, pins mounted within the turns of said edge adapted to su port the portion of the fur to be zigzagge the upper ends of said pins being flush with of said pins being flush with the upper surface of said table, and a presser plate cooperating with said table and pins.

5. A machine for zigzagging the edge of fur, including a table for supporting the body of the Work, said table having a zigzagged edge, pins mounted Within the turns of said edge adapted to support the portion of the fur to be zigzagged, and a presser plate hinged to said table and cooperating with said table and pins.

- 6. A machine for zigzagging the edge of fur, including a. table for supporting the body of the Work, said table having a zigzagged edge, pins mounted Within the turns of said edge adapted to support the portion of the fur to be zigzagged, the upper ends the upper surand a presser plate and cooperating with face" ':of' said table, hinged to said table said table and pins.

7. A machine for zigzagging, the edge of fur, including a frame and a table for supporting the Work, a reciprocable cutter head on said frame, snipping blades oscillatably mounted on said head in parallel relation to each other, and means for simultaneously oscillating all of said blades, at Will, in either direction. p

8. A machine for zigzagging the edge of fur, including a frame and a table for supporting the Work, a rcciprocable cutter head on said frame, snipping blades oscillatably mounted on said head in parallel relation to each other, and means-for simultaneously oscillating all of said blades, at will, in either direction, maintaining their parallel relation.

9. A machine for zigzagging the edge of fur, including a frame and a table for supporting the Work, a reciprocable cutter head on said frame, snipping blades oscillatably mounted on said head'in parallel relation to each other, and a bar operatively connected With said blades for simultaneously oscillating all of same, at will, in either direction.

10. A machine for zigzagging the edge of .fur, including aframe and a table-for .sup-

porting the work, a reciprocable cutter head on said frame, snipping blades oscillatably mounted on said head in parallel relation to each other, and a bar operatively connected with said blades for simultaneously oscillating all of the same, at will, in either direction, maintaining their parallel relation.

11. A machine for zigzagging the edge of fur, including a frame and a table for supporting the same, a reciprocable cutter head on said frame, cutter bars oscillatably mounted on said head, a snipping blade attached to each bar, said blades being in parallel relation to each other, an arm fixedly attached to each cutter bar, and a bar connecting said arms for simultaneously oscillating all of said blades, at will, in either direction.

12. Amachine for zigzagging the edge of fur, including a frame'and a table for supporting the same, a reciprocablev cutter head on said frame, cutter bars oscillatably mounted on said head, a snipping blade attached to each bar, said blades being in parallel relation to each other, an arm fixedly attached to each cutter bar, and a bar connecting said arms for simultaneously oscillating all of said blades, at will, in either direction, maintaining their parallel relation.

In testimony whereof, I, ERNEST Brno, have signed my name to this specification in the presence of two subscribing witnesses.

ERNEST BIRO. 

